1021233028 has 72 divisors (see below), whose sum is σ = 1970160192. Its totient is φ = 462177408.

The previous prime is 1021233001. The next prime is 1021233029. The reversal of 1021233028 is 8203321201.

It is not an unprimeable number, because it can be changed into a prime (1021233029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5183826 + ... + 5184022.

It is an arithmetic number, because the mean of its divisors is an integer number (27363336).

Almost surely, 2^1021233028 is an apocalyptic number.

It is an amenable number.

1021233028 is a deficient number, since it is larger than the sum of its proper divisors (948927164).

1021233028 is a wasteful number, since it uses less digits than its factorization.

1021233028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1021233028 is about 31956.7368171408. The cubic root of 1021233028 is about 1007.0281651753.

Adding to 1021233028 its reverse (8203321201), we get a palindrome (9224554229).

The spelling of 1021233028 in words is "one billion, twenty-one million, two hundred thirty-three thousand, twenty-eight".